Merge pull request #50 from christindbose/cache_reserve_SEGF

Added check to see if RESERVATION_FAIL happens to prevent SEGF during cache probe

1 files changed, 5 insertions, 0 deletions

diff --git a/src/gpgpu-sim/gpu-cache.cc b/src/gpgpu-sim/gpu-cache.cc
index 3a5a67d..b3105ae 100644
--- a/src/gpgpu-sim/gpu-cache.cc
+++ b/src/gpgpu-sim/gpu-cache.cc
@@ -409,6 +409,11 @@ void tag_array::fill(new_addr_type addr, unsigned time,
   // assert( m_config.m_alloc_policy == ON_FILL );
   unsigned idx;
   enum cache_request_status status = probe(addr, idx, mask, is_write);
+
+  if (status == RESERVATION_FAIL) {
+	 return;
+  }
+
   bool before = m_lines[idx]->is_modified_line();
   // assert(status==MISS||status==SECTOR_MISS); // MSHR should have prevented
   // redundant memory request